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DTC P0600 A/T COMMUNICATION LINE EC-999 [VG33E] C D E F G H I J K L M A EC DTC P0600 A/T COMMUNICATION LINE PFP:23710 System Description UBS00DMQ These circuit lines are used to control the smooth shifting up and down of A/T during the hard acceleration/ On Board Diagnosis Logic UBS00DMR The MIL will not light up for this diagnosis. *: This DTC can be detected only by “DATA MONITOR (AUTO TRIG)” with CONSULT-II. DTC Confirmation Procedure UBS00DMS NOTE: WITH CONSULT-II 1. Turn ignition switch ON. 2. Select “DATA MONITOR” mode with CONSULT-II. 3. Start engine, and rev engine more than 1,000 rpm once, then let 4. If DTC 1st trip is detected, go to WITH GST Follow the procedure “WITH CONSULT-II”. DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0600* A/T control serial com- ECM receives incorrect voltage from ● Harness or connectors SEF058Y |